Chapter 7

Question 1

What is a sigma bond?

Answer 1

An end-to-end” type of overlap

Question 2

What is the strongest type of covalent Bond and why?

Answer 2

Sigma bonds are the strongest type of covalent bond because the region of highest electron probability lies on the bond axis

Question 3

What are weaker than sigma bonds because the electrons are spread out over a greater volume of space around the bond axis?

Answer 3

Pi bonds

Question 4

Resonance

Answer 4

Molecules that can’t be fully described

Question 5

What suggests that the orbitals of a molecule’s atoms are replaced by totally new orbitals when a molecule forms!

Answer 5

The molecular orbital theory

Question 6

What are weaker than sigma bonds because the electrons are spread out over a greater volume of space around the bond axis?

Answer 6

Pi bond

Question 7

What are 3 ways in which a molecule can form without an octet?

Answer 7

• first, some molecules have an odd number of valence electrons to share
• second, other elements, such as boron, are content with fewer than four pairs of shared electrons.
• in a third group of molecules, more than 8 valence electrons are shared with a central atom

Question 8

What is a arrangement that is y-shaped, with a 4 atoms lying in a single plane?

Answer 8

Triagonal planar

Question 9

A molecule with 2 concentrations of electrons around the central atom has what type of shape?

Answer 9

Linear shape

Question 10

Other hybrids of s and p orbitals are what?

Answer 10

Possible

Question 11

What kind of molecules don’t have polarity?

Answer 11

Diatomic molecules

Question 12

When the electrons are shared though unequally, the bond is called a what?

Answer 12

A polar covalent bond

Question 13

What states that when the 2 bonding orbitals are superimposed, the overlapping space containing both electrons becomes available to both nuclei, and both atoms acquire another valence electron that fills the vacancy in that particular orbital?

Answer 13

The valence bond theory